Improvement in scaffold-clamps



A. GUDENUGE & H. S. PLLOCK.

ScaiToId-Clamps.

Patented May 26,1874.

inviami/MEMPHIS C0. /l/ X /asakwrls marisa) UNITED STATES PATENT OEETcEo ALBERT GUDENOGE AND HUGH S. POLLOCK, OF NEW YORK, N. Y.

IMPROVEMENT IN SCAFFOLD-CLANIPS.

Specification forming part of Letters Patent No. 151,282, dated May S6, 1374; application filed April 4, 1874.

To all whom it may concern:

Be it known that we, ALBERT GUDENoeE and HUGH STIRLING PoLLocK, of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Adjustable Hold-Fasts; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon, which form part of this specitication.

Our invention relates to clamps or hold-fasts for attaching a permanent device for the purpose of erecting scaffolding; and the nature of our invention consists in a clamp or hold fast made in two pieces united together and attached to the building, substantially as hereinafter more fully set forth.

In order to enable others skilled in the art to which our invention appertains to make and use the same, we will now proceed to describe its construction and operation.

Our clamp or hold-fast is made of sheet, wrought, or cast iron or other metal, in the form of a hoop or band, in two pieces, A and B. Three revolving eyes, Mi, are attached to one side of the hoop to receive the hooks D D, which are attached by the clamps G G to the building.

The clamps G G may be built permanently into the wall in the course of erection, to which the hooks D D may be screwed in repairing or painting, as occasion may require.

The hooks should be inserted into the revolving eyes, and then screwed into the clamp G`by means of a pipe-wrench. The band or hoop grasps the ordinary pole used in building at any desired place, and when the hooks are brought irmlyhto place the door of the scaffold is to be laid on the hooks.

`By this means scaiolds can be erected with the greatest safety without nails or defacing buildings. They can also be adjusted to the window-sills of the building when they are not adjusted permanently.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is s The combination, with. a bisected band, A B, of the swivel-eyes@ i, screw-hooks D D, and clamps G G, substantially as and for the purposes herein set forth.

In testimony that we claim the foregoing as our own we aix our signatures in presence of two witnesses. v

ALBERT GUDENOGE. HUGH STIRLING POLLOCK.

Titnessesz JNO. V. KEEFFE, B. F. SMITH. 

